// Note:Your choice is C++ IDE
#include <iostream>
using namespace std;
class Point
{
	public :
	    Point(float xx,float yy){
	    	x=xx;
	    	y=yy;
	    	}
	private :
	   float x;
	   float y;
};
class Rectangle :public Point
{
	public :
	    Rectangle(float xx,float yy,float w,float h);
	    	float Area(){
	    		return width*high;
	    		}
	private :
	   int width;
	   int high;
};
Rectangle::Rectangle(float xx,float yy,float w,float h):Point(xx,yy){
	width=w;
	high=h;
}

class Circle :public Point
{
	public:
	   Circle(float xx,float yy,float r);
	   float Area(){
	   	return 3.14*radius*radius; 
	   	}
	private :
	  float radius;
};
Circle::Circle(float xx,float yy,float r):Point(xx,yy){
	radius=r;
	}
int main()
{
    Rectangle R(1,2,3,4);
    cout<<"R.Area()="<<R.Area()<<endl;
    Circle C(5,6,7);
    cout<<"C.Area()="<<C.Area()<<endl;
    return 0;
}